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Flexible Polyether Polyol
PURANOL F3521 is a flexible polyether polyol with high primary hydroxyl content and strong reactivity, ideal for viscoelastic, continuous line, and molded polyurethane foams.
Product Description
PURANOL F3521 is a flexi polyether polyol with low functionality, large molecular weight, goodmolecular chain flexibility, high primary hydroxyl content, strong reactivity, and no BHT.
| Parameter | Unit | Specification | Test Method |
| Colour | APHA | ≤50 | GB/T 3143 |
| Water | % | ≤ 0.08 | GB/T 22313 |
| Hydroxyl value | mg KOH/g | 40-44 | GB/T 12008.3 |
| Relative Density | g/cm3 | 1.002-1.095 | Gravimetric methods /25℃ |
| Acid value | mg KOH/g | ≤0.05 | GB/T 12008.5 |
| pH | -- | 5～8 | GB/T 6368 |
| Viscosity | mPa·s/25℃ | 800-1200 | GB/T 12008.7 |
| K+, and Na+ | ppm | ≤8 | GB/T I2008.4 |
Application
The products are mainly used for polyurethane elastomers, adhesives, coatings, waterproof coatings, chemical grouting materials.
We cooperate with multiple well-known domestic suppliers
Our products have passed various industry certifications
